BB Funnel for copper-coated steel 4.5mm BBs.

I needed a funnel for BBs to better weight nosecones, so I devised one that was harder to clog.


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The funnel takes one of three dimensions out of the problem, and provides a hole where two BBs can't get in an opposition arrangement that makes a clog.

Not clog-proof, but quickly cleared.

Keep the funnel clean of debris or adhesives.

Materials and methods

Used black PLA.



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8181d65d73a57fc78fb4a6c7bf96f17d?default=blank&size=40jddj published this design ago